Table 4.

Concordance between families with 2 or more individuals confirmed for DD1

Phenotype	Kidney stones		P-value	Proteinuria		P-value	Hypercalciuria		P-value
% Concordance within the family	0%–50%	51%–100%		0%–50%	51%–100%		0%–50%	51%–100%
N. of families	8	14	0.18	3	12	< 0.05	2	10	< 0.05

DD1, Dent disease 1.